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川西林盘景观特征研究

A Study of Landscape Characteristics of Famhouse Forests in Western Sichuan

  • 摘要: 集生产、生活和景观于一体的复合型居住模式的川西林盘,不仅是成都平原特有的、全国具有唯一性的川西田园风光,更在传承川西农耕文化和维护成都平原生态环境等方面具有重要意义。本研究采用遥感影像判读的方法,以空间代替时间的方式,根据林盘主要功能,开展了对农耕型、新型聚居点型、生态型、农家旅游型和特殊产业型等6种类型林盘景观特征研究,并通过林盘内的民居、院坝、林地、生产型园地(菜园、果园等)等景观要素与林盘关系研究,解析林盘演替发展规律。结果表明:①新型聚居点型林盘则表现为林盘的数量密度最大,达到4.43个/km2;生态型林盘平均面积最大,单个林盘平均面积26 830m2。②林盘的均匀度指数则以生态型林盘最大(36.733%),新型聚居点型最小(13.277%);破碎度则以生态型林盘最小(0.373),特殊产业型最大(2.287)。③林盘内的民居、院坝、林地和生产型园地等景观要素的占地面积均与林盘总面积呈正相关关系。

     

    Abstract: The farmhouse forests of Western Sichuan were not only unique to the Chengdu Plain but also to the whole country by combining the production,living and landscape into a complex living model.It was also of important significance in inheriting the farming culture of Western Sichuan and maintaining the ecological environment of the Chengdu Plain.In this study,remote sensing image interpretation methods were used to study the landscape characteristics of farmhouse forests in six types,including farming type,new settlement type,ecological type,farm tourism type,and special industrial type.The developing law of farmhouse forests was analyzed through the research on the relationship between forests and landscape elements,such as residential houses,courtyards,forests,and gardens (vegetable gardens,orchards,etc).The results showed that ① the new type of settlement forests showed the highest density,reaching 4.43 per km2;Ecological forests covered the largest area,and the average area of individual forest was 26,830 m2.② The uniformity index was the largest in ecological type (36.733%),and the new settlement type was the smallest.The degree of fragmentation was the smallest in ecological type (0.373),and the largest in the special industry type(2.287).③ There was a positive correlation between the total area of the farmhouse forests and the area of landscape elements such as residential houses,county yards,forest lands,and gardens.

     

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